What Is This Tool?
This unit converter facilitates the transformation between lumen per square centimetre per steradian and candela per square meter, supporting luminance measurement needs in multiple industries and applications.
How to Use This Tool?
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Enter the luminance value in lumen/sq. cm/steradian
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Select the target unit as candela/square meter
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Click convert to get the equivalent value in the SI unit of luminance
Key Features
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Converts luminous flux per unit area per solid angle to standard luminance units
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Supports measurement translation for high-intensity, small-area light sources
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Browser-based and easy to use for optical and photometric professionals
Examples
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0.5 lumen/sq. cm/steradian equals 5000 candela/square meter
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2 lumen/sq. cm/steradian equals 20000 candela/square meter
Common Use Cases
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Characterizing brightness in micro-LED and OLED pixels
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Performing optical and photometric measurements for lenses and LEDs
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Calibrating luminance meters for small-area or high-intensity light samples
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Specifying and measuring brightness of display screens like TVs and smartphones
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Evaluating lighting and architectural surface brightness
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Testing luminance of road signs and safety indicators
Tips & Best Practices
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Ensure correct measurement geometry and viewing angle for accurate luminance values
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Use the tool to translate high-brightness small-area measurements into widely recognized units
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Consider the surface characteristics when interpreting luminance results
Limitations
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Luminance values depend on viewing geometry and surface properties
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Very high luminance in lumen/sq. cm/steradian usually corresponds to extremely bright, tiny areas
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Specialized equipment may be required for precise measurement at high brightness levels
Frequently Asked Questions
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What does lumen/sq. cm/steradian measure?
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It measures luminous flux per unit area per unit solid angle, indicating brightness of small or intense light sources.
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Why convert lumen/sq. cm/steradian to candela/square meter?
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To express luminance in a standard SI unit (candela/square meter) for broad applications like display brightness and lighting design.
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Is 1 lumen/sq. cm/steradian equal to 1 candela/square meter?
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No, 1 lumen/sq. cm/steradian equals 10,000 candela/square meter.
Key Terminology
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Lumen/sq. cm/steradian
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A photometric unit measuring luminous flux per unit area per solid angle, useful for characterizing very small or high-brightness light sources.
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Candela/square meter
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The SI unit of luminance representing luminous intensity emitted or reflected per unit area in a given direction, also known as a nit.
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Nit
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Another name for candela per square meter, commonly used in specifying display brightness.